Husky Energy says ground movement to blame for spill into N. Saskatchewan River
CALGARY — Husky Energy says shifting ground is to blame for a pipeline burst in July that leaked crude oil into the North Saskatchewan River and jeopardized the drinking water of thousands downstream.
“The break was a sudden, one-time event in a section of the pipe that had buckled due to the force of ground movement,” Husky said in a summary of a detailed report released Thursday.
The break, which happened about 160 metres from the riverbank, spewed out about 225,000 litres of heavy crude oil and diluent with about 40 per cent of the liquid flowing into the river.
The report by Stantec Inc. found that major rainfall, poor drainage, and a weak clay foundation were likely the causes for the ground movement, though Husky said a 1997 third-party geotechnical assessment showed the area was inactive.


